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Yoshio Hirai

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Publication

Featured researches published by Yoshio Hirai.

Kyushu Plant Protection Research | 1988

Comparison of growth and wing polymorphism among the immigrant populations of the brown plant hopper, Nilaparvata lugens (STAL).

Yoshio Hirai; Tomonari Watanabe; Masaichi Tsurumachi; Yoshio Ogawa

Growth and wing polymorphism among the immigrant populations of the brown planthopper, Nilaparvata lugens STAL, were compared under uniform laboratory rearing temperatures. Variations in the total effective temperature and the ratio of macropterous forms were observed during the nymphal growth and in female adults. Comparison of the locations of low level jet and the collection sites of the immigrant plant hoppers, suggested that they were derived from different migration sources.

Journal of Agricultural Meteorology | 1987

Prediction of long distance migration of rice planthoppers to northern Kyushu considering low-level jet stream.

Hiroshi Seino; Yoshiharu Shiotsuki; Shingo Oya; Yoshio Hirai

Japanese Journal of Applied Entomology and Zoology | 1987

Overwintering of the apple snail, Pomacea canaliculata LAMARCK, in north Kyushu.

Shingo Oya; Yoshio Hirai; Yoshio Miyahara

Kyushu Plant Protection Research | 1986

Injuring habits of the apple snail, Ampullarius insularus D'Orbigny, to the young rice seedlings

Shingo Oya; Yoshio Hirai; Yoshio Miyahara

Japanese Journal of Applied Entomology and Zoology | 1988

Computer Program for Forecasting the Overseas Immigration of Long-distance Migratory Rice Planthoppers.

Tomonari Watanabe; Hiroshi Seino; Chikayoshi Kitamura; Yoshio Hirai

Kyushu Plant Protection Research | 1986

Oviposition and hatching rate of Ampullarius insularus D'Orbigny in Kyushu.

Yoshio Miyahara; Yoshio Hirai; Shingo Oya

Japanese Journal of Applied Entomology and Zoology | 1994

Endophyte-Enhanced Resistance in Perennial Ryegrass and Tall Fescue to Bluegrass Webworm, Parapediasia teterrella.

Kenichi Kanda; Yoshio Hirai; Hironori Koga; Kazuo Hasegawa

Kyushu Plant Protection Research | 1986

Population census of the apple snail, Ampullarius insularus, in a paddy field.

Yoshio Hirai; Shingo Oya; Yoshio Miyahara

Japanese Journal of Applied Entomology and Zoology | 1990

Outbreak of the winter grain mite, Penthaleus major (Dugès), in forage grasses in Nasu District.

Kenichi Kanda; Yoshio Hirai

Japanese Journal of Applied Entomology and Zoology | 1992

Cultural Control of the Winter Grain Mite, Penthaleus major (DUGES) in Cool Season Grass.

Kenichi Kanda; Yoshio Hirai; Kyoichi Takahashi; Jin Kobayashi; Kazuhiro Ohtomo

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Shingo Oya

National Agriculture and Food Research Organization

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Hiroshi Seino

ENVIRON

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Chikayoshi Kitamura

Kyoto University

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Yoshiharu Shiotsuki

Yamaguchi University

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